Analysis of plane-stress problems with axial symmetry in strain-hardening range /

Results show that: (1) Ratios of principal stresses remain essentially constant during loading; (2) distributions of strain in the plastic case are less uniform than in the elastic case, although distributions of stress are more uniform; (3) the deformation that can be accepted by the member depends mainly on the maximum octahedral shear strain of the materials; and (4) the added load that the member can sustain between the onset of yielding and failure depends on octahedral shear stress-strain relation of the material.A method, based on the deformation theory and employing the finite-strain concept, was developed to solve plane-stress problems in the strain hardening range of circular membrane, rotating disk, and infinited plate with circular hole. Distributions of octahedral shear strain, as well as principal stresses and strains, were obtained.NACA TN No. 2217."December 1950."Includes bibliographical references.Results show that: (1) Ratios of principal stresses remain essentially constant during loading; (2) distributions of strain in the plastic case are less uniform than in the elastic case, although distributions of stress are more uniform; (3) the deformation that can be accepted by the member depends mainly on the maximum octahedral shear strain of the materials; and (4) the added load that the member can sustain between the onset of yielding and failure depends on octahedral shear stress-strain relation of the material.A method, based on the deformation theory and employing the finite-strain concept, was developed to solve plane-stress problems in the strain hardening range of circular membrane, rotating disk, and infinited plate with circular hole. Distributions of octahedral shear strain, as well as principal stresses and strains, were obtained.Mode of access: Internet